When and where to build the new factory _____ yet.
| A．have not decided | B．are not decided |
| C．has not decided | D．is not decided |
OneofMarx’sworks _____writteninEnglishinthe1860s.
| A．was | B．were | C．wouldbe | D．are |
Thenumberofthepeoplewho _____cars _____increasing.
| A．owns,are | B．owns,is | C．own,is | D．own,are |
____ofthemoney _____usedup.
| A．Three-five,are | B．Three-fifths,havebeen |
| C．Three-fifths,hasbeen | D．Third-fifths,is |
Seventypercentofthestudentsinourschool_____fromthecountryside.
| A．is | B．are | C．comes | D．arecoming |
NooneexceptJackandTom _____theanswer.
| A．know | B．knows | C．isknowing | D．areknown |